Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-03-2024 12:44

General

  • Target

    file.exe

  • Size

    419KB

  • MD5

    8a716466aa6f2d425ec09770626e8e54

  • SHA1

    62fb757ea5098651331f91c1664db9fe46b21879

  • SHA256

    585d1fb4f288974b683c5abfb10c97d7d2ae3f59c2bcfd78ba272e3be2cd7815

  • SHA512

    54f11067e400347834689b4532ae53b00ec96a3ca90a2c21de27942f4ca30306fdda0522c1a3a4cde047ad650162e2d8313205220acaab4cc60e010965690940

  • SSDEEP

    6144:QTCsE3O4yuS5O0RBOInaCa6G6ypdf4Bf7e/DnjBeq04fVXOUvE0CGsSE9BLM:2E3O5uOO0mInnGZCTS84fZLtw

Malware Config

Extracted

Family

xworm

Version

5.0

C2

5.182.87.154:7000

Mutex

VMFidhoqn75fm5lJ

Attributes
  • Install_directory

    %Temp%

  • install_file

    mdnsresp.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • PureLog Stealer

    PureLog Stealer is an infostealer written in C#.

  • PureLog Stealer payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4476
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAZgBpAGwAZQAuAGUAeABlADsAIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAHIAbwBjAGUAcwBzACAAZgBpAGwAZQAuAGUAeABlADsA
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1420
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      C:\Users\Admin\AppData\Local\Temp\file.exe
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\file.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:556
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'file.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3496
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\mdnsresp.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4456
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'mdnsresp.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    1d29d89f4e75b09c0e0ebb36a241f372

    SHA1

    9171d5d4f837dd2ca01149e2c98c468ae57f3608

    SHA256

    599a27d413252fc423b3f3f0790a900ed3dfcd77825945be64aa2d8a5ee22845

    SHA512

    91860d429cab36532ddbfe7fad754351f14c3db2252f35cd08c3a8decae1d2ef1107413c2bda29e4e82f9d918a035e9adec50a285074595cf57b5f1c3934d0e8

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    362597b6f3a0e57a4cabe748234ca0ad

    SHA1

    3053689d00491d2e7f09ea7284b4976022ca4a26

    SHA256

    2833ef07b0d1540609fd541e65a6d12c847e9ca23a7e57ec3c34c807370e5494

    SHA512

    17e5c45e4fbc4d7fca118d997ce751161048f357e278b3b07f04e938b9d6583139cce7cb7f6167b88b3149cb56252f7f6270a13fdd4fc57ba7a75fde18302a8e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    282bdf8d537b615b8ade03d242e87464

    SHA1

    8575757431e2353e40e5b27de3ca8783a06ecc41

    SHA256

    e5f82161c5c36db6964d8c45ee555ddb223740956b5dd4fcc6f308024b3d4670

    SHA512

    9d83cffa4ba088b6452b028ae467cdf82496067c479165810b9f9b4a98d9f06f0cbde056c1967058a9c6dbdcf9b8556c4d8c73b784f560f3e0fa412beb241957

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    70d025eca7d79d96329801bedd6ae68f

    SHA1

    119974d0fb11548b83876119ba72ae3b76a13847

    SHA256

    d9692593a94ac13cd0c275b9d641f89ba309358feb5d6b97cb6e36bef3d30782

    SHA512

    ceee0f49403e882f263dca94301795a8b8a21d670a4efd6d015462c669d568ac32bc30a9455ebf7befb39cd5cce21b4b63dbc94d1b19e4532caef502626e8ee0

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_p5153zfz.e4f.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/556-89-0x0000000002610000-0x0000000002620000-memory.dmp

    Filesize

    64KB

  • memory/556-90-0x00000000071D0000-0x0000000007273000-memory.dmp

    Filesize

    652KB

  • memory/556-91-0x0000000007540000-0x0000000007551000-memory.dmp

    Filesize

    68KB

  • memory/556-88-0x0000000002610000-0x0000000002620000-memory.dmp

    Filesize

    64KB

  • memory/556-78-0x00000000710B0000-0x00000000710FC000-memory.dmp

    Filesize

    304KB

  • memory/556-77-0x000000007F070000-0x000000007F080000-memory.dmp

    Filesize

    64KB

  • memory/556-76-0x00000000063E0000-0x000000000642C000-memory.dmp

    Filesize

    304KB

  • memory/556-92-0x0000000007570000-0x0000000007584000-memory.dmp

    Filesize

    80KB

  • memory/556-65-0x0000000002610000-0x0000000002620000-memory.dmp

    Filesize

    64KB

  • memory/556-64-0x0000000002610000-0x0000000002620000-memory.dmp

    Filesize

    64KB

  • memory/556-63-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/556-94-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-18-0x0000000004830000-0x0000000004840000-memory.dmp

    Filesize

    64KB

  • memory/1420-49-0x0000000006D20000-0x0000000006DC3000-memory.dmp

    Filesize

    652KB

  • memory/1420-21-0x00000000055C0000-0x0000000005626000-memory.dmp

    Filesize

    408KB

  • memory/1420-22-0x00000000056E0000-0x0000000005746000-memory.dmp

    Filesize

    408KB

  • memory/1420-19-0x0000000004E70000-0x0000000005498000-memory.dmp

    Filesize

    6.2MB

  • memory/1420-32-0x0000000005850000-0x0000000005BA4000-memory.dmp

    Filesize

    3.3MB

  • memory/1420-33-0x0000000005D20000-0x0000000005D3E000-memory.dmp

    Filesize

    120KB

  • memory/1420-34-0x0000000005D70000-0x0000000005DBC000-memory.dmp

    Filesize

    304KB

  • memory/1420-35-0x000000007F500000-0x000000007F510000-memory.dmp

    Filesize

    64KB

  • memory/1420-36-0x0000000006300000-0x0000000006332000-memory.dmp

    Filesize

    200KB

  • memory/1420-37-0x0000000070F80000-0x0000000070FCC000-memory.dmp

    Filesize

    304KB

  • memory/1420-48-0x0000000006D00000-0x0000000006D1E000-memory.dmp

    Filesize

    120KB

  • memory/1420-47-0x0000000004830000-0x0000000004840000-memory.dmp

    Filesize

    64KB

  • memory/1420-20-0x00000000054A0000-0x00000000054C2000-memory.dmp

    Filesize

    136KB

  • memory/1420-50-0x00000000076A0000-0x0000000007D1A000-memory.dmp

    Filesize

    6.5MB

  • memory/1420-51-0x0000000007050000-0x000000000706A000-memory.dmp

    Filesize

    104KB

  • memory/1420-52-0x00000000070C0000-0x00000000070CA000-memory.dmp

    Filesize

    40KB

  • memory/1420-53-0x00000000072D0000-0x0000000007366000-memory.dmp

    Filesize

    600KB

  • memory/1420-54-0x0000000007250000-0x0000000007261000-memory.dmp

    Filesize

    68KB

  • memory/1420-55-0x0000000007280000-0x000000000728E000-memory.dmp

    Filesize

    56KB

  • memory/1420-56-0x0000000007290000-0x00000000072A4000-memory.dmp

    Filesize

    80KB

  • memory/1420-57-0x0000000007390000-0x00000000073AA000-memory.dmp

    Filesize

    104KB

  • memory/1420-58-0x0000000007370000-0x0000000007378000-memory.dmp

    Filesize

    32KB

  • memory/1420-61-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-12-0x0000000004780000-0x00000000047B6000-memory.dmp

    Filesize

    216KB

  • memory/1420-17-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-14-0x0000000004830000-0x0000000004840000-memory.dmp

    Filesize

    64KB

  • memory/2224-15-0x0000000005890000-0x000000000592C000-memory.dmp

    Filesize

    624KB

  • memory/2224-10-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2224-109-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/2224-13-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/3496-122-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/3496-108-0x00000000710B0000-0x00000000710FC000-memory.dmp

    Filesize

    304KB

  • memory/3496-120-0x0000000004E10000-0x0000000004E20000-memory.dmp

    Filesize

    64KB

  • memory/3496-95-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/3496-96-0x0000000004E10000-0x0000000004E20000-memory.dmp

    Filesize

    64KB

  • memory/3496-97-0x0000000004E10000-0x0000000004E20000-memory.dmp

    Filesize

    64KB

  • memory/3496-110-0x000000007EFB0000-0x000000007EFC0000-memory.dmp

    Filesize

    64KB

  • memory/4456-136-0x00000000710B0000-0x00000000710FC000-memory.dmp

    Filesize

    304KB

  • memory/4456-125-0x0000000002160000-0x0000000002170000-memory.dmp

    Filesize

    64KB

  • memory/4456-124-0x0000000002160000-0x0000000002170000-memory.dmp

    Filesize

    64KB

  • memory/4456-123-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/4476-4-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

    Filesize

    64KB

  • memory/4476-0-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/4476-3-0x0000000004C60000-0x0000000004CF2000-memory.dmp

    Filesize

    584KB

  • memory/4476-9-0x0000000004F70000-0x0000000004FBC000-memory.dmp

    Filesize

    304KB

  • memory/4476-16-0x0000000075170000-0x0000000075920000-memory.dmp

    Filesize

    7.7MB

  • memory/4476-5-0x0000000004C40000-0x0000000004C4A000-memory.dmp

    Filesize

    40KB

  • memory/4476-6-0x0000000004E80000-0x0000000004EC8000-memory.dmp

    Filesize

    288KB

  • memory/4476-7-0x0000000004EE0000-0x0000000004F10000-memory.dmp

    Filesize

    192KB

  • memory/4476-2-0x0000000005170000-0x0000000005714000-memory.dmp

    Filesize

    5.6MB

  • memory/4476-8-0x0000000004F30000-0x0000000004F60000-memory.dmp

    Filesize

    192KB

  • memory/4476-1-0x00000000001D0000-0x0000000000240000-memory.dmp

    Filesize

    448KB